Quad blade unit



FIG. 1 is a first top perspective view of a quad blade unit of thepresent disclosure;

FIG. 2 is a first bottom perspective view of the quad blade unit of FIG.1 ;

FIG. 3 is a second top perspective view of the quad blade unit of FIG. 1;

FIG. 4 is a second bottom perspective view of the quad blade unit ofFIG. 1 ;

FIG. 5 is a first side elevational view of the quad blade unit of FIG. 1;

FIG. 6 is a second side elevational view of the quad blade unit of FIG.1 ;

FIG. 7 is a front elevational view of the quad blade unit of FIG. 1 ;

FIG. 8 is a rear side elevational view of the quad blade unit of FIG. 1;

FIG. 9 is a top plan view of the quad blade unit of FIG. 1 ; and,

FIG. 10 is a bottom plan view of the quad blade unit of FIG. 1 .

The broken lines depict portions of the article that form no part of theclaimed design.

CLAIM We claim the ornamental design for a quad blade unit, as shown anddescribed.